What is Nethereum?
Nethereum is the.Net integration library for Ethereum, simplifying the access and smart contract interaction with Ethereum nodes both public or permissioned like Geth, Parity or Quorum.

Nethereum is developed targeting netstandard 1.1, net451 and also as a portable library, hence it is compatible with all the operating systems (Windows, Linux, MacOS, Android and OSX) and has been tested on cloud, mobile, desktop, Xbox, hololens and windows IoT.

According to official docs, upcoming releases will include functionalities such as DevP2P, Plasma and Micro-Payments.